Try to force Rust to emit a branch. Example: if x > 2 { y = foo(); branch_hint(); } else { y = bar(); } This function has no semantics. It is a hint only.

ceil_div_usize

log2_ceil

Computes ceil(log_2(n)).

log2_strict

Computes log_2(n), panicking if n is not a power of two.

log_floor

Returns the largest integer i such that base**i <= n.

reverse_index_bits

Permutes arr such that each index is mapped to its reverse in binary.

reverse_index_bits_in_place

Crate plonky2_util

Functions